Finding the Third Proportional to 9,948,673 and 21,648,912

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948,673 : 21,648,912 = 21,648,912 : x
2. Step 2: Convert to fraction form
   9,948,673/21,648,912 = 21,648,912/x
3. Step 3: Cross multiply
   9,948,673x = 21,648,912 × 21,648,912
4. Step 4: Simplify right side
   9,948,673x = 468,675,390,783,744
5. Step 5: Solve for x
   x = 468,675,390,783,744/9,948,673
6. Step 6: Final answer
   x = 47,109,337.17